#pragma once


#include <stdio.h>
#include <stdlib.h>
typedef char BTDataType;
typedef struct BinaryTreeNode
{
	struct BinaryTreeNode* left;
	struct BinaryTreeNode* right;
	BTDataType data;
}BTNode;

//前序
void PrevOrder(BTNode* root);
//中序
void InOrder(BTNode* root);
//后序
void PostOrder(BTNode* root);
